John p



J. F. 'APPLEBY. Shaft and Sleeve Coupling;

No; 217.192. Patented July 8,1879.

773525 5 5 Iva/bah? 21. :4 m l Q? N.PETERS, PHOTO-LITHOGRAFHER,WASHINGTON. D Q

UNITED STATES PATENT OFFICE.

JOHN F. APPLEBY, OF BELOIT, WISCONSIN.

I'MPROVEMENT IN SHAFT AND S LEEVE COUPLINGS.

Specification forming part of Letters Patent No. 217,192, dated J nly 8,1879; application filed November 2, 1877.

To all whom "it mag concern:

in Fig. 1. To effect this adjustment the sprock- Be it known that I,JOHN F. APPLEBY, of et-wheels BO,or theirequivalents,aremounted.

'Beloit, in the county of Rock and State of Wisconsin, have invented anImproved Device for Communicating Motion to Self-Binders for Harvesters;and I do hereby declare that the following is a full and exactdescription thereof, reference being had to the accompanying drawings,making part of this specification Figure 1 being a top view of theimproved device and of the parts of a harvester with which it isimmediately connected; Fig. 2, a vertical section of the same in a planeindicated by the line .90 m, Fig. 1; Fig. 3, view of a part detached.

Like letters designate corresponding parts in all of the figures.

The object of my invention is to produce by simple means aself-adjusting device for communicating themotions from a fixeddrivingshaft to the operativeparts of a self-binding mechanism mountedon a movable or adjustable frame without disturbing any part of themachine; and the invention consists in substantially the followingconstruction Let A represent the fixed driving -shaft mounted on aharvester for communicating the motions to the self-binding mechanismmounted on a movable or adjustable frame. As represented, these motionsare communicated by two sprocket-Wheels, B O, and two sprocket-chains, DE, the wheel and chainB D driving the needle and tying apparatus, aswell as one of the packing-arms described in an application for LettersPatent previously filed by me in the Patent Office, and the other wheeland chain driving the other packingarm described in the said applicationbut other gearing or belting devices may be employed for similarpurposes, and the features of my improvement be applied thereto as wellas to the construction represented.

For the purpose of adjusting the positions of the self-binding mechanismit is necessary that these sprocket-wheels, or their equivalents,(cog-wheels, pulleys, or whatever the means employed may be,) shall atdifferent times assume different positions on the driving-shaftA,asindicated by two extreme positions in the drawin gs, onein full lineand the other by dottedlines on or connected by a sleeve, Gr, consistingof a half-cylinder, or thereabout, divided longitudinally, as shown, sothat one side is entirely open. or hollow cylinder is considerablylargerin diameter than the shaft A, the bearings of the sleeve or of thesprocket-Wheels thereon being at the ends of the said sleeve. This opensleeve and space within it around the shaft A is for the purpose ofadmitting a coupler or driver, H, to be attached to the shaft byinserting it in the sleeve and then passing the shaft through it. It isor may be a simple short cylinder or block fitting upon the shaft, andsecured firmly thereto by a set-screw, a, or its equivalent. Itsperiphery is small enough to move freely inside of the sleeve G withouttouching the inner surface of the same; but it has a projection orshoulder, 11, 011 one side to strike against one edge of the sleeve andcause the same, with its sprocket-wheels, to revolve with the shaft; andthe shoulder is double or abrupt on opposite sides to strike either edgeof the sleeve and turn the same in either direction. This coupler doesnot interfere with the free longitudinal sliding of the sleeve on theshaft.

By this construction of the sleeve and coupler, first, a cheap device isproduced, since the sleeve can be cast, and requires no subsequentfinishing, and the coupler is of easy and cheap construction and,second, a stronger coupling device is produced, since the coupling isapplied at the periphery of the sleeve, and the strain of powerfulleverage, as when it is applied on the shaft itself in the ordinarymanner, is avoided, and with it a perfect freedom of longitudinaladjustment of the sleeve on the shaft.

In order that the sleeve may be caused to travel on the shaftsimultaneously and equally with the adjustment of the binding apparatusin a parallel direction, and thcreby always have perfect freedom ofaction of its connecting-gear, and avoid binding or breakage of theparts, the sleeve is connected with the bind ing apparatus by a rigidbar, I, preferably in the manner shown, it having a bearing surroundingthe driving-shaft A, and another The inner surface of this open sleevebearin g surrounding a motion-receiving shaft, K, which also has asprocket-wheel, L, to receive the sprocket-chain D or its equivalent.This bar is secured to the frame of the binding apparatus, and moveslaterally with the adjusting movements thereof and since it is coupledto the sleeve G by a forked couplingplate, 0, secured to it, andfittingina groove, 01, of the sleeve, the latter is caused to travel ineither direction along with the movements of the binding apparatus. Thisalso serves to keep the shafts A K at the proper distances apart, andprevent the bending of either.

This sleeve is equally applicable when a single sprocket-wheel orequivalent driveris used pose, either in the side or end of the sleeve,will suffice.

What I claim as my invention, and desire to secure by Letters Patent,is-- 1. An open sliding sleeve, G, with bearings at its ends, applied toa driving-shaft, A, constructed and operating substantially as and forthe purpose herein specified.

2. An open sliding sleeve, G, and driver H, in combination with adriving-shaft, A, sub: stantially as and for the purpose hereinspecified.

3. In combination with the coupling-sleeve Gr, aconnecting-bar, I,traveling with the motion-receiving shaft K and the frame in which it ismounted, substantially as and for the purpose herein specified.

JOHN F. APPLEBY.

Witnesses:

J. S. BROWN, A. A. HOSMER.

